SU1531220A1 - Displacement-to-code converter - Google Patents

Abstract

The invention relates to automation and computing and can be used to connect analog information sources with a digital computing device. In order to increase reliability by forming a symptom of a malfunction in the displacement transducer into a code containing a sine-cosine sensor (ACS), the first and second comparators, displacement pulse former, reversible counter, first and second paraphase communication lines, the third and fourth comparators are inserted, the former a symptom of malfunction and a third and fourth paraphase communication lines. In the process of moving, the ACS produces a sine and cosine signals, which are supplied via paraphase lines to the inputs of the comparators. The displacement pulse former produces pulses corresponding to displacement, on one of two outputs, depending on the direction of displacement. The output pulses of the displacement pulse generator are counted by a reversible counter. In case of interference in one of the paraphase communication lines, the symptom driver 8 generates a symptom of a converter fault. 2 hp ff, 2 ill.

Description

one

(21) 4107042 / 24-24

(22) 08.21.86

(46) 12/23/89. Bul Number 47

(72) S.A.Vlasyuk

(53) 681.325 (088.8)

(56) USSR author's certificate

f 1309309, cl. H 03 M 1/30, 1985.

Presiukhin L.N. etc. Photoelectric information converters. - M .: Mashinostroenie, 1974, p.180, Fig.93.

(54) TRAVEL TRANSMITTER TO CODE

(57) The invention relates to automation and computing and can be used to communicate analog information sources with a digital computing device. In order to increase reliability by forming a symptom of a fault in the displacement transducer

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WITH

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the code containing the sine-cosine sensor (ACS), the first and second comparators, the displacement pulse shaper, the reversible counter, the first and second paraphase lines 9, 10 of the communication, the third and fourth comparators, the fault conditioner, and the third and fourth pairs are entered phase lines of communication. In the process of displacement, the NIN SKD generates a sine and cosine signals, which are supplied via the para-phase communication lines to the inputs of the comparative invention. This invention relates to automation and computing technology and can be used to connect analogs x Digital information sources vychislitelna4 device.

The aim of the invention is to verify the accuracy of the converter by forming a symptom of malfunction.

Figures 1 and 2 show block diagrams of a motion to code converter.

The transducer contains a sine-cosine sensor (ACS) t, comparators 2-5, displacement transducer 6, reversible counter 7, fault symptom 8, paraphase communication lines 9-12. Forg mit) 6 movement pulses contains multiplexers 13 and 14, the IS-HE element tS, inverters 16 and 17, triggers 18-22, pulse generator 23, positive potential bus 24. The fault conditioner 8 contains an OR element 25, a trigger 26 and an initial installation element 27, which may be implemented as a single pulse generator. The paraphase lines 9-12 of the link contain resistors 28-30 connected to power supply 31.

The Converter operates as follows.

At the beginning of the conversion, by pressing the operator button or by turning on the supply voltage, the element 27 generates a pulse, which sets the trigger 26 in O. In the process of moving, the ACS 1 generates sine and cosine signals, coming through the paraphase lines 9-12 lines. The displacement pulse former produces pulses corresponding to displacement, on one of two outputs, depending on the direction of displacement. The output pulses of the displacement pulse maker are counted by a reversible counter. In case of interference in one of the paraphase communication lines, the malfunction symptom generator generates a symptom of the transducer malfunction. 2 hp ff, 2 ill.

0

z on the inputs of the comparators 2-5. The output signals of the comparators 2–5 are fed to the outputs of multiplexers 13 and 14, depending on the output code; low-order bits of the reversing counter 7 fed to the control

5 inputs of multiplexers 13 and 14. With a zero code at control inputs, multiplexer 13 switches the sin signal to the first input of element 15, and 5os signal inverted on element 16 to the second input, multiplexer 14 switches the signal sin to the third input of 15 element element 17, on the fourth input - signal cos.

The signals from the outputs of the ACS 1 while

5 are in the state log. 1. The signal level at the output of the element 15 is low. When the ACS 1 signals transition to a state other than the first, the output signal level

0 of the element 15 goes to high, while there is a trigger 20. On the leading edge of the clock pulse, the generator 23, the trigger 22 is set to 1, which causes the trigger 20 to be reset and the second output state of the multiplexer 13 (high level) is reset on the trigger 18 and nor the first output of the multiplexer 14 (low level) on the trigger 19. According to

0 to the leading edge of the next clock pulse of the generator 23, the trigger 21 is set to O, which causes the trigger 18 to be reset. Thus, the inverse output of the trigger 18 forms a counting pulse, which

changes the state of the reversible counter 7. In this case, the channels of the multiplexers 13 are re-switched

and 14. At the first input of element 15, the signal is soi (high level), at the second input is an inverted sin signal (high level), at the third input is an inverted cos signal (high), at the fourth input is the sin signal (high level) . In this case, the output of the element 15 will be low, which snaps on trigger 26. The shaper 8 does not generate a fault signal.

In the case of magnetic interference in one of the paraphase communication lines

Triggers 18–22 produce analog-5 trigger inputs

a new sequence of signals. After resetting to O flip-flop 21, the signal level at the output of element 15 does not go low and, therefore, when set to O, flip-flop 22 26 is set to state. As the signal level at the second input of element 25 becomes high, the clock input of element 26 is blocked. The imaging unit 8 generates a signal fault converter.

The binary code of the movement is removed from the outputs of the reversible counter 7

Claims (3)

1. Motion transducer into a code containing a sine-cosine sensor, the first and second comparators, the outputs of which are connected respectively to the first and second inputs of the displacement pulse generator, the first and second outputs of which are connected to the corresponding inputs of the reversible counter, the first to the second paraphase communication lines , the first and second outputs of the sine-cosine sensor through the first paraphase communication line are connected respectively with the first and second inputs of the first comparator, the third and fourth outputs of the sine-braid The sensor is connected via the second paraphase communication line — connected to the first and second inputs of the second comparator, respectively, in order to increase the reliability of the converter, the third and fourth comparators, the third and fourth paraphase lines, and the sign conditioner are entered into it faults, the second and first outputs of the sine-cosine sensor through the third paraphase 1531220 The communication is connected to the first and second inputs of the third comparator respectively, the fourth and third outputs of the sine-cosine sensor are connected via the fourth paraphase communication line to the first and second inputs of the fourth comparator respectively, and the outputs of the third and fourth comparators are connected to the third and fourth shaper inputs respectively displacement pulses, the third and fourth outputs of which are connected respectively to the first 20 25 thirty 35 40 45 50 55 However, the first and second outputs of the reversible counter are connected to the fifth and secondary inputs of the displacement pulse generator, respectively. 2. Converter no.nt, о T - characterized by the fact that the displacement pulse shaper contains the first and second multiplexers, the first and second inverters, the NAND element, five triggers and the pulse generator, the first, second, third and fourth information inputs and The first, second, control, and other inputs of the first multiplexer are respectively the first, fourth, third, second, fifth, and sixth inputs of the movement pulse generator, the information inputs from the fifth to the eighth first multiplexer are connected respectively to the second m, third, fourth and first information inputs of the first multiplexer, information inputs from the first to the eighth second multiplexer are connected respectively to the third, fourth, first, second, quarter, first, second and third information inputs of the first multiplexer, the first Bbtfi and the second control the inputs of the first multiplexer are connected respectively to the first and second control inputs of the second multiplexer, the first output of the first multiplexer is connected to the first input of the NAND element, and the second output of the first a multiplexer coupled to the data input of the first flip-flop and through a first inverter - a second input of AND-NO element, the first output of the second multiplexer coupled to the data input of the second flip-flop and via a second inverter - a third input of AND-NO element and vto715 The second output of the second multiplexer is connected to the fourth input of the NAND element, the output of which is connected to the clock input of the third trigger, the information input, the third trigger input is connected to the positive potential bus, the direct output is connected to the information input of the fourth trigger, and the inverse output is from clock inputs of the first and second triggers, the direct output of the fourth trigger is connected to the reset inputs of the first and second triggers and the information input of the fifth trigger, the inverse output of which is connected to the reset input Another trigger, the output of the pulse generator is connected to the clock inputs of the fourth and fifth triggers, the inverse outputs of the first, the second eight The triggers and the output of the NAND element are the outputs from the first to the fourth displacement pulse generator. 3. The transducer according to claim 1, T is characterized in that the symptom driver has an OR element, a trigger and an element. the initial setup, one input of the OR element, and the information input of the trigger are respectively the first and second inputs of the fault conditioner, the direct output of the trigger is connected to another input of the element. OR, whose episode is connected to the trigger input and the reset input, the trigger is connected to the output of the initial setup element.